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package slack
import (
"fmt"
)
// logger is a logger interface compatible with both stdlib and some
// 3rd party loggers.
type logger interface {
Output(int, string) error
}
// ilogger represents the internal logging api we use.
type ilogger interface {
logger
Print(...interface{})
Printf(string, ...interface{})
Println(...interface{})
}
type Debug interface {
Debug() bool
// Debugf print a formatted debug line.
Debugf(format string, v ...interface{})
// Debugln print a debug line.
Debugln(v ...interface{})
}
// internalLog implements the additional methods used by our internal logging.
type internalLog struct {
logger
}
// Println replicates the behaviour of the standard logger.
func (t internalLog) Println(v ...interface{}) {
t.Output(2, fmt.Sprintln(v...))
}
// Printf replicates the behaviour of the standard logger.
func (t internalLog) Printf(format string, v ...interface{}) {
t.Output(2, fmt.Sprintf(format, v...))
}
// Print replicates the behaviour of the standard logger.
func (t internalLog) Print(v ...interface{}) {
t.Output(2, fmt.Sprint(v...))
}
type discard struct{}
func (t discard) Debug() bool {
return false
}
// Debugf print a formatted debug line.
func (t discard) Debugf(format string, v ...interface{}) {}
// Debugln print a debug line.
func (t discard) Debugln(v ...interface{}) {}
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